Nanoscale resistive switching memory device composed of NiO nanodot and graphene nanoribbon nanogap electrodes

Woo Hee Kim, Chang Soo Park, Jong Yeog Son

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

We report a nanoscale resistive random access memory (RRAM) device consisting of a NiO nanodot and graphene nanoribbon (GNR) nanogap electrodes. The GNR nanogap was established by an electroburning process induced by applying voltage ramp stress between the two ends of the GNR. A NiO nanodot was then deposited between the nanogapped GNR electrodes by an elaborately controllable dip pen lithography method using a nickel carbonate [Ni2 (CO3)(OH)2] solution. The nanoscale GNR/NiO/GNR RRAM device exhibited reliable unipolar resistive switching characteristics with low SET/RESET voltages and currents, which might be the result of its miniaturized size and well-defined Ohmic contacts between the NiO nanodot and GNR electrodes.

Original languageEnglish
Pages (from-to)388-392
Number of pages5
JournalCarbon
Volume79
Issue number1
DOIs
Publication statusPublished - 2014

Bibliographical note

Publisher Copyright:
© 2014 Elsevier Ltd. All rights reserved.

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